Identifying and treating cognitive impairment in fibromyalgia and chronic widespread pain: an epidemiological study and a feasibility study

Award Number
NIHR301808
Award Type
Doctoral Fellowship
Programme
NIHR Fellowships
Status / Stage
Active
Dates
1 January 2022 -
31 December 2024
Duration (calculated)
02 years 11 months
Funder(s)
NIHR
Funding Amount
£433,019.00
Funder/Grant study page
NIHR
Contracted Centre
University of Oxford
Principal Investigator
Dr Eoin Kelleher
PI Contact
eoin.kelleher@ndcn.ox.ac.uk
PI ORCID
0000-0003-2025-5556
WHO Catergories
High quality epidemiological data
Disease Type
Cognitive Impairment

CPEC Review Info
Reference ID16
ResearcherReside Team
Published12/06/2023

Data

Award NumberNIHR301808
Status / StageActive
Start Date20220101
End Date20241231
Duration (calculated) 02 years 11 months
Funder/Grant study pageNIHR
Contracted CentreUniversity of Oxford
Funding Amount£433,019.00

Abstract

Research question: To understand the role of fibromyalgia syndrome (FMS) and chronic widespread pain (CWP) in the development of cognitive impairment, and identify methods to treat cognitive impairment in these patients.BackgroundFMS and CWP are common conditions, characterised by widespread pain of unknown aetiology, and affect 5% and 14% of UK adults respectively. These patients commonly report difficulty concentrating and memory impairment, typically referred to as ‘fibro-fog’. FMS and CWP are associated with impaired performance on objective cognitive tests, although it is uncertain whether there cognitive impairment is global or limited to specific domains. The role of depression and sleep impairment in the development of cognitive symptoms is also uncertain. The long-term cognitive consequences are also unclear, and whether there is an increased risk of dementia. These patients also display alterations in brain structure and function on neuroimaging, but the role of these changes in the development of cognitive impairment is unknown. Although there are many therapies for FMS and CWP, none exist for cognitive symptoms. Psychological therapies, such as cognitive behavioural therapy (CBT), have a role in treatment of FMS, but uptake is limited. Novel digital forms of CBT may be more widely accessible, however these have not been examined before for cognitive symptoms of these disorders.Aims and objectivesTo understand the role of FMS and CWP in the development of cognitive impairment, the underlying mechanisms and mediators in their development, including sleep impairment, and the role of brain structural and functional changes. A feasibility study will establish whether it is possible to conduct a trial of digital CBT targeting sleep disturbance to alleviate cognitive symptoms in patients with FMS.MethodsThe project consists of two studies. Study 1 will use data from UK Biobank, an open-access, population-based study of >500,000 adults aged 40-69. Cross-sectional and longitudinal observational research designs will be employed to examine the association between CWP and FMS with cognitive impairment. The three cognitive endpoints examined will be cognitive performance, changes on structural and functional brain MRI, and risk of incident dementia. Mediation analysis will be performed to examine the role of sleep impairment on the association. Study 2 will be a feasibility study to establish whether it is possible to conduct a trial of digital psychological treatment targeting sleep impairment, which we believe is a mediator to alleviate cognitive symptoms in patients with FMS and CWP. Timelines for deliveryThe literature review and analysis for study 1 will be completed by month 22. Study 2 will be carried out in parallel during months 13-32. The final 6 months will be occupied by the thesis write-up.Anticipated impact and dissemination This work will inform clinical practice for the recognition and treatment of cognitive symptoms in FMS and CWP, an important cause of morbidity for these patients. By addressing these symptoms, greater engagement with other aspects of treatment for these conditions may be achieved, providing health benefits for patients, and more efficient utilisation of health service resources.

Aims

To understand the role of FMS and CWP in the development of cognitive impairment, the underlying mechanisms and mediators in their development, including sleep impairment, and the role of brain structural and functional changes. A feasibility study will establish whether it is possible to conduct a trial of digital CBT targeting sleep disturbance to alleviate cognitive symptoms in patients with FMS.MethodsThe project consists of two studies. Study 1 will use data from UK Biobank, an open-access, population-based study of >500,000 adults aged 40-69. Cross-sectional and longitudinal observational research designs will be employed to examine the association between CWP and FMS with cognitive impairment. The three cognitive endpoints examined will be cognitive performance, changes on structural and functional brain MRI, and risk of incident dementia. Mediation analysis will be performed to examine the role of sleep impairment on the association. Study 2 will be a feasibility study to establish whether it is possible to conduct a trial of digital psychological treatment targeting sleep impairment, which we believe is a mediator to alleviate cognitive symptoms in patients with FMS and CWP.